2 * QEMU SDL display driver
4 * Copyright (c) 2003 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 /* Avoid compiler warning because macro is redefined in SDL_syswm.h. */
26 #undef WIN32_LEAN_AND_MEAN
29 #include <SDL_syswm.h>
31 #include "qemu-common.h"
37 static DisplayChangeListener *dcl;
38 static SDL_Surface *real_screen;
39 static SDL_Surface *guest_screen = NULL;
40 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
41 static int last_vm_running;
42 static bool gui_saved_scaling;
43 static int gui_saved_width;
44 static int gui_saved_height;
45 static int gui_saved_grab;
46 static int gui_fullscreen;
47 static int gui_noframe;
48 static int gui_key_modifier_pressed;
49 static int gui_keysym;
50 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
51 static uint8_t modifiers_state[256];
52 static SDL_Cursor *sdl_cursor_normal;
53 static SDL_Cursor *sdl_cursor_hidden;
54 static int absolute_enabled = 0;
55 static int guest_cursor = 0;
56 static int guest_x, guest_y;
57 static SDL_Cursor *guest_sprite = NULL;
58 static uint8_t allocator;
59 static SDL_PixelFormat host_format;
60 static int scaling_active = 0;
61 static Notifier mouse_mode_notifier;
63 static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
65 // printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
73 if (!scaling_active) {
74 SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
76 if (sdl_zoom_blit(guest_screen, real_screen, SMOOTHING_ON, &rec) < 0) {
77 fprintf(stderr, "Zoom blit failed\n");
82 SDL_UpdateRect(real_screen, rec.x, rec.y, rec.w, rec.h);
85 static void sdl_setdata(DisplayState *ds)
87 if (guest_screen != NULL) SDL_FreeSurface(guest_screen);
89 guest_screen = SDL_CreateRGBSurfaceFrom(ds_get_data(ds), ds_get_width(ds), ds_get_height(ds),
90 ds_get_bits_per_pixel(ds), ds_get_linesize(ds),
91 ds->surface->pf.rmask, ds->surface->pf.gmask,
92 ds->surface->pf.bmask, ds->surface->pf.amask);
95 static void do_sdl_resize(int width, int height, int bpp)
99 // printf("resizing to %d %d\n", w, h);
101 flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
102 if (gui_fullscreen) {
103 flags |= SDL_FULLSCREEN;
105 flags |= SDL_RESIZABLE;
108 flags |= SDL_NOFRAME;
110 real_screen = SDL_SetVideoMode(width, height, bpp, flags);
112 fprintf(stderr, "Could not open SDL display (%dx%dx%d): %s\n", width,
113 height, bpp, SDL_GetError());
118 static void sdl_resize(DisplayState *ds)
122 do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
123 else if (real_screen->format->BitsPerPixel != ds_get_bits_per_pixel(ds))
124 do_sdl_resize(real_screen->w, real_screen->h, ds_get_bits_per_pixel(ds));
127 if (guest_screen != NULL) {
128 SDL_FreeSurface(guest_screen);
134 static PixelFormat sdl_to_qemu_pixelformat(SDL_PixelFormat *sdl_pf)
138 memset(&qemu_pf, 0x00, sizeof(PixelFormat));
140 qemu_pf.bits_per_pixel = sdl_pf->BitsPerPixel;
141 qemu_pf.bytes_per_pixel = sdl_pf->BytesPerPixel;
142 qemu_pf.depth = (qemu_pf.bits_per_pixel) == 32 ? 24 : (qemu_pf.bits_per_pixel);
144 qemu_pf.rmask = sdl_pf->Rmask;
145 qemu_pf.gmask = sdl_pf->Gmask;
146 qemu_pf.bmask = sdl_pf->Bmask;
147 qemu_pf.amask = sdl_pf->Amask;
149 qemu_pf.rshift = sdl_pf->Rshift;
150 qemu_pf.gshift = sdl_pf->Gshift;
151 qemu_pf.bshift = sdl_pf->Bshift;
152 qemu_pf.ashift = sdl_pf->Ashift;
154 qemu_pf.rbits = 8 - sdl_pf->Rloss;
155 qemu_pf.gbits = 8 - sdl_pf->Gloss;
156 qemu_pf.bbits = 8 - sdl_pf->Bloss;
157 qemu_pf.abits = 8 - sdl_pf->Aloss;
159 qemu_pf.rmax = ((1 << qemu_pf.rbits) - 1);
160 qemu_pf.gmax = ((1 << qemu_pf.gbits) - 1);
161 qemu_pf.bmax = ((1 << qemu_pf.bbits) - 1);
162 qemu_pf.amax = ((1 << qemu_pf.abits) - 1);
167 static DisplaySurface* sdl_create_displaysurface(int width, int height)
169 DisplaySurface *surface = (DisplaySurface*) g_malloc0(sizeof(DisplaySurface));
170 if (surface == NULL) {
171 fprintf(stderr, "sdl_create_displaysurface: malloc failed\n");
175 surface->width = width;
176 surface->height = height;
178 if (scaling_active) {
181 if (host_format.BytesPerPixel != 2 && host_format.BytesPerPixel != 4) {
182 linesize = width * 4;
183 pf = qemu_default_pixelformat(32);
185 linesize = width * host_format.BytesPerPixel;
186 pf = sdl_to_qemu_pixelformat(&host_format);
188 qemu_alloc_display(surface, width, height, linesize, pf, 0);
192 if (host_format.BitsPerPixel == 16)
193 do_sdl_resize(width, height, 16);
195 do_sdl_resize(width, height, 32);
197 surface->pf = sdl_to_qemu_pixelformat(real_screen->format);
198 surface->linesize = real_screen->pitch;
199 surface->data = real_screen->pixels;
201 #ifdef HOST_WORDS_BIGENDIAN
202 surface->flags = QEMU_REALPIXELS_FLAG | QEMU_BIG_ENDIAN_FLAG;
204 surface->flags = QEMU_REALPIXELS_FLAG;
211 static void sdl_free_displaysurface(DisplaySurface *surface)
217 if (surface->flags & QEMU_ALLOCATED_FLAG)
218 g_free(surface->data);
222 static DisplaySurface* sdl_resize_displaysurface(DisplaySurface *surface, int width, int height)
224 sdl_free_displaysurface(surface);
225 return sdl_create_displaysurface(width, height);
228 /* generic keyboard conversion */
230 #include "sdl_keysym.h"
232 static kbd_layout_t *kbd_layout = NULL;
234 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
237 /* workaround for X11+SDL bug with AltGR */
238 keysym = ev->keysym.sym;
239 if (keysym == 0 && ev->keysym.scancode == 113)
241 /* For Japanese key '\' and '|' */
242 if (keysym == 92 && ev->keysym.scancode == 133) {
245 return keysym2scancode(kbd_layout, keysym) & SCANCODE_KEYMASK;
248 /* specific keyboard conversions from scan codes */
252 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
254 return ev->keysym.scancode;
259 #if defined(SDL_VIDEO_DRIVER_X11)
260 #include <X11/XKBlib.h>
262 static int check_for_evdev(void)
265 XkbDescPtr desc = NULL;
267 char *keycodes = NULL;
269 SDL_VERSION(&info.version);
270 if (!SDL_GetWMInfo(&info)) {
273 desc = XkbGetKeyboard(info.info.x11.display,
274 XkbGBN_AllComponentsMask,
276 if (desc && desc->names) {
277 keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes);
278 if (keycodes == NULL) {
279 fprintf(stderr, "could not lookup keycode name\n");
280 } else if (strstart(keycodes, "evdev", NULL)) {
282 } else if (!strstart(keycodes, "xfree86", NULL)) {
283 fprintf(stderr, "unknown keycodes `%s', please report to "
289 XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True);
297 static int check_for_evdev(void)
303 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
306 static int has_evdev = -1;
309 has_evdev = check_for_evdev();
311 keycode = ev->keysym.scancode;
315 } else if (keycode < 97) {
316 keycode -= 8; /* just an offset */
317 } else if (keycode < 158) {
318 /* use conversion table */
320 keycode = translate_evdev_keycode(keycode - 97);
322 keycode = translate_xfree86_keycode(keycode - 97);
323 } else if (keycode == 208) { /* Hiragana_Katakana */
325 } else if (keycode == 211) { /* backslash */
335 static void reset_keys(void)
338 for(i = 0; i < 256; i++) {
339 if (modifiers_state[i]) {
340 if (i & SCANCODE_GREY)
341 kbd_put_keycode(SCANCODE_EMUL0);
342 kbd_put_keycode(i | SCANCODE_UP);
343 modifiers_state[i] = 0;
348 static void sdl_process_key(SDL_KeyboardEvent *ev)
352 if (ev->keysym.sym == SDLK_PAUSE) {
355 if (ev->type == SDL_KEYUP)
357 kbd_put_keycode(0xe1);
358 kbd_put_keycode(0x1d | v);
359 kbd_put_keycode(0x45 | v);
364 keycode = sdl_keyevent_to_keycode_generic(ev);
366 keycode = sdl_keyevent_to_keycode(ev);
371 /* sent when leaving window: reset the modifiers state */
374 case 0x2a: /* Left Shift */
375 case 0x36: /* Right Shift */
376 case 0x1d: /* Left CTRL */
377 case 0x9d: /* Right CTRL */
378 case 0x38: /* Left ALT */
379 case 0xb8: /* Right ALT */
380 if (ev->type == SDL_KEYUP)
381 modifiers_state[keycode] = 0;
383 modifiers_state[keycode] = 1;
385 #define QEMU_SDL_VERSION ((SDL_MAJOR_VERSION << 8) + SDL_MINOR_VERSION)
386 #if QEMU_SDL_VERSION < 0x102 || QEMU_SDL_VERSION == 0x102 && SDL_PATCHLEVEL < 14
387 /* SDL versions before 1.2.14 don't support key up for caps/num lock. */
388 case 0x45: /* num lock */
389 case 0x3a: /* caps lock */
390 /* SDL does not send the key up event, so we generate it */
391 kbd_put_keycode(keycode);
392 kbd_put_keycode(keycode | SCANCODE_UP);
397 /* now send the key code */
398 if (keycode & SCANCODE_GREY)
399 kbd_put_keycode(SCANCODE_EMUL0);
400 if (ev->type == SDL_KEYUP)
401 kbd_put_keycode(keycode | SCANCODE_UP);
403 kbd_put_keycode(keycode & SCANCODE_KEYCODEMASK);
406 static void sdl_update_caption(void)
408 char win_title[1024];
409 char icon_title[1024];
410 const char *status = "";
413 status = " [Stopped]";
416 status = " - Press Ctrl-Alt-Shift to exit mouse grab";
418 status = " - Press Right-Ctrl to exit mouse grab";
420 status = " - Press Ctrl-Alt to exit mouse grab";
424 snprintf(win_title, sizeof(win_title), "QEMU (%s)%s", qemu_name, status);
425 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
427 snprintf(win_title, sizeof(win_title), "QEMU%s", status);
428 snprintf(icon_title, sizeof(icon_title), "QEMU");
431 SDL_WM_SetCaption(win_title, icon_title);
434 static void sdl_hide_cursor(void)
439 if (kbd_mouse_is_absolute()) {
441 SDL_SetCursor(sdl_cursor_hidden);
447 static void sdl_show_cursor(void)
452 if (!kbd_mouse_is_absolute() || !is_graphic_console()) {
455 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
456 SDL_SetCursor(guest_sprite);
458 SDL_SetCursor(sdl_cursor_normal);
462 static void sdl_grab_start(void)
465 SDL_SetCursor(guest_sprite);
466 if (!kbd_mouse_is_absolute() && !absolute_enabled)
467 SDL_WarpMouse(guest_x, guest_y);
471 if (SDL_WM_GrabInput(SDL_GRAB_ON) == SDL_GRAB_ON) {
473 sdl_update_caption();
478 static void sdl_grab_end(void)
480 SDL_WM_GrabInput(SDL_GRAB_OFF);
483 sdl_update_caption();
486 static void sdl_mouse_mode_change(Notifier *notify, void *data)
488 if (kbd_mouse_is_absolute()) {
489 if (!absolute_enabled) {
491 absolute_enabled = 1;
493 } else if (absolute_enabled) {
494 if (!gui_fullscreen) {
497 absolute_enabled = 0;
501 static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
505 if (state & SDL_BUTTON(SDL_BUTTON_LEFT)) {
506 buttons |= MOUSE_EVENT_LBUTTON;
508 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT)) {
509 buttons |= MOUSE_EVENT_RBUTTON;
511 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE)) {
512 buttons |= MOUSE_EVENT_MBUTTON;
515 if (kbd_mouse_is_absolute()) {
516 dx = x * 0x7FFF / (real_screen->w - 1);
517 dy = y * 0x7FFF / (real_screen->h - 1);
518 } else if (guest_cursor) {
527 kbd_mouse_event(dx, dy, dz, buttons);
530 static void sdl_scale(DisplayState *ds, int width, int height)
532 int bpp = real_screen->format->BitsPerPixel;
534 if (bpp != 16 && bpp != 32) {
537 do_sdl_resize(width, height, bpp);
539 if (!is_buffer_shared(ds->surface)) {
540 ds->surface = qemu_resize_displaysurface(ds, ds_get_width(ds),
546 static void toggle_full_screen(DisplayState *ds)
548 gui_fullscreen = !gui_fullscreen;
549 if (gui_fullscreen) {
550 gui_saved_width = real_screen->w;
551 gui_saved_height = real_screen->h;
552 gui_saved_scaling = scaling_active;
554 do_sdl_resize(ds_get_width(ds), ds_get_height(ds),
555 ds_get_bits_per_pixel(ds));
558 gui_saved_grab = gui_grab;
561 if (gui_saved_scaling) {
562 sdl_scale(ds, gui_saved_width, gui_saved_height);
564 do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
566 if (!gui_saved_grab || !is_graphic_console()) {
574 static void absolute_mouse_grab(void)
576 int mouse_x, mouse_y;
578 if (SDL_GetAppState() & SDL_APPINPUTFOCUS) {
579 SDL_GetMouseState(&mouse_x, &mouse_y);
580 if (mouse_x > 0 && mouse_x < real_screen->w - 1 &&
581 mouse_y > 0 && mouse_y < real_screen->h - 1) {
587 static void handle_keydown(DisplayState *ds, SDL_Event *ev)
593 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
594 (gui_grab_code | KMOD_LSHIFT);
595 } else if (ctrl_grab) {
596 mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL;
598 mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code;
600 gui_key_modifier_pressed = mod_state;
602 if (gui_key_modifier_pressed) {
603 keycode = sdl_keyevent_to_keycode(&ev->key);
605 case 0x21: /* 'f' key on US keyboard */
606 toggle_full_screen(ds);
609 case 0x16: /* 'u' key on US keyboard */
610 if (scaling_active) {
618 case 0x02 ... 0x0a: /* '1' to '9' keys */
619 /* Reset the modifiers sent to the current console */
621 console_select(keycode - 0x02);
623 if (gui_fullscreen) {
626 if (!is_graphic_console()) {
627 /* release grab if going to a text console */
630 } else if (absolute_enabled) {
633 } else if (absolute_enabled) {
635 absolute_mouse_grab();
640 if (!gui_fullscreen) {
641 int width = MAX(real_screen->w + (keycode == 0x1b ? 50 : -50),
643 int height = (ds_get_height(ds) * width) / ds_get_width(ds);
645 sdl_scale(ds, width, height);
653 } else if (!is_graphic_console()) {
656 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
657 switch (ev->key.keysym.sym) {
659 keysym = QEMU_KEY_CTRL_UP;
662 keysym = QEMU_KEY_CTRL_DOWN;
665 keysym = QEMU_KEY_CTRL_LEFT;
668 keysym = QEMU_KEY_CTRL_RIGHT;
671 keysym = QEMU_KEY_CTRL_HOME;
674 keysym = QEMU_KEY_CTRL_END;
677 keysym = QEMU_KEY_CTRL_PAGEUP;
680 keysym = QEMU_KEY_CTRL_PAGEDOWN;
686 switch (ev->key.keysym.sym) {
688 keysym = QEMU_KEY_UP;
691 keysym = QEMU_KEY_DOWN;
694 keysym = QEMU_KEY_LEFT;
697 keysym = QEMU_KEY_RIGHT;
700 keysym = QEMU_KEY_HOME;
703 keysym = QEMU_KEY_END;
706 keysym = QEMU_KEY_PAGEUP;
709 keysym = QEMU_KEY_PAGEDOWN;
712 keysym = QEMU_KEY_BACKSPACE;
715 keysym = QEMU_KEY_DELETE;
722 kbd_put_keysym(keysym);
723 } else if (ev->key.keysym.unicode != 0) {
724 kbd_put_keysym(ev->key.keysym.unicode);
727 if (is_graphic_console() && !gui_keysym) {
728 sdl_process_key(&ev->key);
732 static void handle_keyup(DisplayState *ds, SDL_Event *ev)
737 mod_state = (ev->key.keysym.mod & gui_grab_code);
739 mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT));
741 if (!mod_state && gui_key_modifier_pressed) {
742 gui_key_modifier_pressed = 0;
743 if (gui_keysym == 0) {
744 /* exit/enter grab if pressing Ctrl-Alt */
746 /* If the application is not active, do not try to enter grab
747 * state. It prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from
748 * blocking all the application (SDL bug). */
749 if (is_graphic_console() &&
750 SDL_GetAppState() & SDL_APPACTIVE) {
753 } else if (!gui_fullscreen) {
756 /* SDL does not send back all the modifiers key, so we must
763 if (is_graphic_console() && !gui_keysym) {
764 sdl_process_key(&ev->key);
768 static void handle_mousemotion(DisplayState *ds, SDL_Event *ev)
772 if (is_graphic_console() &&
773 (kbd_mouse_is_absolute() || absolute_enabled)) {
774 max_x = real_screen->w - 1;
775 max_y = real_screen->h - 1;
776 if (gui_grab && (ev->motion.x == 0 || ev->motion.y == 0 ||
777 ev->motion.x == max_x || ev->motion.y == max_y)) {
780 if (!gui_grab && SDL_GetAppState() & SDL_APPINPUTFOCUS &&
781 (ev->motion.x > 0 && ev->motion.x < max_x &&
782 ev->motion.y > 0 && ev->motion.y < max_y)) {
786 if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
787 sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0,
788 ev->motion.x, ev->motion.y, ev->motion.state);
792 static void handle_mousebutton(DisplayState *ds, SDL_Event *ev)
794 int buttonstate = SDL_GetMouseState(NULL, NULL);
795 SDL_MouseButtonEvent *bev;
798 if (!is_graphic_console()) {
803 if (!gui_grab && !kbd_mouse_is_absolute()) {
804 if (ev->type == SDL_MOUSEBUTTONDOWN &&
805 (bev->button == SDL_BUTTON_LEFT)) {
806 /* start grabbing all events */
811 if (ev->type == SDL_MOUSEBUTTONDOWN) {
812 buttonstate |= SDL_BUTTON(bev->button);
814 buttonstate &= ~SDL_BUTTON(bev->button);
816 #ifdef SDL_BUTTON_WHEELUP
817 if (bev->button == SDL_BUTTON_WHEELUP &&
818 ev->type == SDL_MOUSEBUTTONDOWN) {
820 } else if (bev->button == SDL_BUTTON_WHEELDOWN &&
821 ev->type == SDL_MOUSEBUTTONDOWN) {
825 sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate);
829 static void handle_activation(DisplayState *ds, SDL_Event *ev)
831 if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
832 !ev->active.gain && !gui_fullscreen) {
835 if (!gui_grab && ev->active.gain && is_graphic_console() &&
836 (kbd_mouse_is_absolute() || absolute_enabled)) {
837 absolute_mouse_grab();
839 if (ev->active.state & SDL_APPACTIVE) {
840 if (ev->active.gain) {
841 /* Back to default interval */
842 dcl->gui_timer_interval = 0;
845 /* Sleeping interval */
846 dcl->gui_timer_interval = 500;
852 static void sdl_refresh(DisplayState *ds)
854 SDL_Event ev1, *ev = &ev1;
856 if (last_vm_running != vm_running) {
857 last_vm_running = vm_running;
858 sdl_update_caption();
862 SDL_EnableUNICODE(!is_graphic_console());
864 while (SDL_PollEvent(ev)) {
866 case SDL_VIDEOEXPOSE:
867 sdl_update(ds, 0, 0, real_screen->w, real_screen->h);
870 handle_keydown(ds, ev);
873 handle_keyup(ds, ev);
878 qemu_system_shutdown_request();
881 case SDL_MOUSEMOTION:
882 handle_mousemotion(ds, ev);
884 case SDL_MOUSEBUTTONDOWN:
885 case SDL_MOUSEBUTTONUP:
886 handle_mousebutton(ds, ev);
888 case SDL_ACTIVEEVENT:
889 handle_activation(ds, ev);
891 case SDL_VIDEORESIZE:
892 sdl_scale(ds, ev->resize.w, ev->resize.h);
902 static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
904 SDL_Rect dst = { x, y, w, h };
905 SDL_FillRect(real_screen, &dst, c);
908 static void sdl_mouse_warp(int x, int y, int on)
913 if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
914 SDL_SetCursor(guest_sprite);
915 if (!kbd_mouse_is_absolute() && !absolute_enabled)
921 guest_x = x, guest_y = y;
924 static void sdl_mouse_define(QEMUCursor *c)
926 uint8_t *image, *mask;
930 SDL_FreeCursor(guest_sprite);
932 bpl = cursor_get_mono_bpl(c);
933 image = g_malloc0(bpl * c->height);
934 mask = g_malloc0(bpl * c->height);
935 cursor_get_mono_image(c, 0x000000, image);
936 cursor_get_mono_mask(c, 0, mask);
937 guest_sprite = SDL_CreateCursor(image, mask, c->width, c->height,
943 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
944 SDL_SetCursor(guest_sprite);
947 static void sdl_cleanup(void)
950 SDL_FreeCursor(guest_sprite);
951 SDL_QuitSubSystem(SDL_INIT_VIDEO);
954 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
958 DisplayAllocator *da;
959 const SDL_VideoInfo *vi;
962 #if defined(__APPLE__)
963 /* always use generic keymaps */
964 if (!keyboard_layout)
965 keyboard_layout = "en-us";
967 if(keyboard_layout) {
968 kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
977 setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 0);
980 /* on Linux, SDL may use fbcon|directfb|svgalib when run without
981 * accessible $DISPLAY to open X11 window. This is often the case
982 * when qemu is run using sudo. But in this case, and when actually
983 * run in X11 environment, SDL fights with X11 for the video card,
984 * making current display unavailable, often until reboot.
985 * So make x11 the default SDL video driver if this variable is unset.
986 * This is a bit hackish but saves us from bigger problem.
987 * Maybe it's a good idea to fix this in SDL instead.
989 setenv("SDL_VIDEODRIVER", "x11", 0);
992 /* Enable normal up/down events for Caps-Lock and Num-Lock keys.
993 * This requires SDL >= 1.2.14. */
994 setenv("SDL_DISABLE_LOCK_KEYS", "1", 1);
996 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
997 if (SDL_Init (flags)) {
998 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",
1002 vi = SDL_GetVideoInfo();
1003 host_format = *(vi->vfmt);
1005 /* Load a 32x32x4 image. White pixels are transparent. */
1006 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp");
1008 SDL_Surface *image = SDL_LoadBMP(filename);
1010 uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255);
1011 SDL_SetColorKey(image, SDL_SRCCOLORKEY, colorkey);
1012 SDL_WM_SetIcon(image, NULL);
1022 dcl = g_malloc0(sizeof(DisplayChangeListener));
1023 dcl->dpy_update = sdl_update;
1024 dcl->dpy_resize = sdl_resize;
1025 dcl->dpy_refresh = sdl_refresh;
1026 dcl->dpy_setdata = sdl_setdata;
1027 dcl->dpy_fill = sdl_fill;
1028 ds->mouse_set = sdl_mouse_warp;
1029 ds->cursor_define = sdl_mouse_define;
1030 register_displaychangelistener(ds, dcl);
1032 da = g_malloc0(sizeof(DisplayAllocator));
1033 da->create_displaysurface = sdl_create_displaysurface;
1034 da->resize_displaysurface = sdl_resize_displaysurface;
1035 da->free_displaysurface = sdl_free_displaysurface;
1036 if (register_displayallocator(ds, da) == da) {
1040 mouse_mode_notifier.notify = sdl_mouse_mode_change;
1041 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier);
1043 sdl_update_caption();
1044 SDL_EnableKeyRepeat(250, 50);
1047 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
1048 sdl_cursor_normal = SDL_GetCursor();
1050 atexit(sdl_cleanup);